Correct option is B
The correct answer is:(B)Plutella xylostella
Explanation
Plutella xylostella, commonly known as the diamondback moth, is the first insect species reported to have developed resistance to Bacillus thuringiensis (Bt) toxins under both field and laboratory conditions.
Plutella xylostella, commonly known as the diamondback moth, is the first insect species reported to have developed resistance to Bacillus thuringiensis (Bt) toxins under both field and laboratory conditions.
This resistance poses a major challenge in pest management for cruciferous crops like cabbage and cauliflower.
Important Points
Resistance was first observed in Hawaii in the1980s.
It is a major pest of cruciferous vegetables.
Its rapid life cycle and high reproductive capacity contribute to fast resistance development.
Knowledge Booster:
Helicoverpa armigera: A major pest in cotton and pulses; resistance cases reported.
Spodoptera litura: Known for resistance to various insecticides, including Bt in some cases.
Pectinophora gossypiella (Pink bollworm): Reported resistance to Bt cotton in India.
English
30 Questions
30 Marks
27 Mins
